weight



'(No Model.)

G. W. WRIGHT.

TRANSOM LIFTER. v No. 369,626. Patented Sept. 6, 1887. Y- .79

Harman TATES Farnr Wren.

GRANVILLE W. WRIGHT, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO SARGENT 8ECOMPANY, OF SAME PLACE.

TRANSOM-LIFTER.

SPECIFICATION forming part of Letters Patent No. 369,626, datedSeptember 6, 1887.

Application filed July 5', 1887. Serial No. 243,336.

To aZZ whom, it may concern.-

Be it known that I, GRANVILLE W.WRIGHT, of New Haven, in the county ofNew Haven and State of Connecticut, have invented a new Improvement inTransom-Lifters; and I do hereby declare the following, when taken inconnection with accompanying drawings and the letters of referencemarked thereon, to be a full, clear, and exact description of the same,and which said drawings constitute part of this specification, andrepresent, in-

Figure 1, a top view of the arm with the eye attached as for theright-hand side of the transom; Fig. 2, the same arm as inverted for theleft-hand side of the transom, the eye portion being in section; Fig. 3,a side view of the eye detached. Fig. 4 represents the method of formingthe arm directly upon the eye.

This invention relates to an improvement in that class oftransom-lifters which consist of an arm fixed to the transom andextending outward therefrom, and to which a system of rods and levers isapplied, so that through said arm the transom may be opened or closed; Aconnection is made to the arm by a joint, the axis of which is parallelwith the transom, and this connection must be made at one side of theedge of the transom; hence the arm is necessarily made of substantiallyL shape, and because of this L shape the lifter is adapted only to oneside of the transom unless the lifter be made convertible. Thisjoint isusually made in the form of an eye on the upper end of a lever or rodset onto a trunnion formed on the end of the arm, the eye being securedto the arm by various devices. To make the arm convertible fromrighthand to left-hand side of the transom the eye must be inverted. Theattachment of the eye to the arm, so as to prevent its accidentaldisplacement, is a very considerable part of the cost of manufacture.

The object of my invention is to make a convertible arm and simplify theconnection between the arm and the system of rods or levers.

In the illustration, Fig. l, A represents the arm as set, say, for theright-hand side of the transom; B, an eye hung to the outer end of thearm, and C the rod which extends from the eye.

In Fig. 2 the same letters indicate the same parts as set for theleft-hand side of the tran- (No model.)

To hang the eye upon the arm, I first cast the eye B of the requisiteshape, as seen in .Fig. 3, with a hole through it for the trunnion orbearing of the arm. The shank D ofthe eye is screwthreaded, to receivethe corresponding screwthreaded end of the red C. I form the trunnion Ewith a collar, a, at the inner end of the trunnion, and a like collar,1), at the outer end of the trunnion, integral with the arm itself, thecollars being respectively each side the eye B. To thus make the collarsintegral with the arm, I form a mold, as indicated in Fig. 4, in which acavity is formed corresponding to the arm A, the trunnion E, and thecollars a b, having previously cast the eye B. Into this mold the eye Bis set, as indicated in Fig. 4., in its proper relation to the cavity inthe mold. Then metal is poured in to fill the mold,which flows throughthe eye and into the cavities on the sides of the eye, to form therespective collars, the eye being first treated to a coating of plumbagoor other suitable materialto prevent the too close contact of the metalpoured therein. When removed from the flask, the

' eye hangs freely upon the trunnion of the arm and securely held thereby the respective collars a b, and from which it is impossible to removeit without destroying the arm. This makes asimple and extremely cheapjoint, yet one which is not liable to accidental derangement, and it iseasily convertible from right to left by simply inverting it, as fromthe position in Fig. 1 to thatin Fig. 2, the shank of the eye permittingit to rotate on the rod C,which connects it with the system of leversand rods for the operation of the transom.

The hereiudescribed improvement in transom-lifters, consisting of theeye 13, adapted to receive the end of the rod 0, and the arm A, havingits outer end extending through the eye to form the trunnion E, and withcollars a b on the respective sides of the eye, the said trunnion andcollars formed as an integral part of the arm, substantially asdescribed.

GRANVILLE W. WRIGHT.

Witnesses:

WM. S. Coons, CHAS. L. BALDWIN.

